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Computational singular perturbation method and tangential stretching rate analysis of large scale simulations of reactive flows: Feature tracking, time scale characterization, and cause/effect identification. Part 1, basic concepts

par Valorani, Mauro;Creta, Francesco;Ciottoli, Pietro Paolo;Galassi, Riccardo Malpica;Goussis, Dimitris D.A.;Najm, Habib H.N.;Paolucci, S.;Im, Hong H.G.;Tingas, Efstathios Al;Manias, Dimitris D.M.;Parente, Alessandro ;Li, Zhiyi ;Grenga, Temistocle
Référence Data Analysis for Direct Numerical Simulations of Turbulent Combustion: From Equation-Based Analysis to Machine Learning, Springer International Publishing, page (43-64)
Publication Publié, 2020-01

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Résumé :

This chapter provides a review of the basic ideas at the core of the Computational Singular Perturbation (CSP) method and the Tangential Stretching Rate (TSR) analysis. It includes a coherent summary of the theoretical foundations of these two methodologies while emphasizing theirmutual interconnections. The main theoretical findings are presented in a systematic fashion. Their virtues and limitations will be discussed with reference to auto-ignition systems, laminar and turbulent premixed flames, and non-premixed jet flames. The material presented in the chapter constitutes an effective guideline for further studies.